| 单词 |
roscoelite |
| 释义 |
roscoelite Min.|ˈrɒskəʊlaɪt|
[f. the name of Sir Henry Roscoe (1833–1915), English chemist + -ite1.]
A vanadium ore that is a basic silicate of potassium, vanadium, and aluminium belonging to the mica family and occurring as minute green or brown scales.
1876J. Blake in Amer. Jrnl. Sci. CXII. 31 The mineral, to which I have given the name of Roscoelite,—in honor of Professor Roscoe, of Manchester, who has done so much for the chemical history of vanadium,—is a well marked species of mica, containing quite a large percentage of vanadium. 1943R. D. George Minerals & Rocks iii. 92 As an ore of vanadium, roscoelite has been found chiefly in western Colorado. 1966Mineral. Abstr. XVII. 670/1 Haradaite (SrVOSi2O6), goldmanite (calcium vanadic garnet Ca3V2Si3O12), and roscoelite (KV2AlSi3O10(OH)2) have been hydrothermally synthesized..at moderate PT conditions. 1974Encycl. Brit. Micropædia X. 346/3 Vanadium is the 22nd most abundant element in the Earth's crust. Some commercial sources are the minerals carnotite, vanadinite, and roscoelite. |
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